88 lines
1.2 KiB
JavaScript
88 lines
1.2 KiB
JavaScript
|
|
/*!
|
|
* Stylus - Null
|
|
* Copyright (c) Automattic <developer.wordpress.com>
|
|
* MIT Licensed
|
|
*/
|
|
|
|
/**
|
|
* Module dependencies.
|
|
*/
|
|
|
|
var Node = require('./node')
|
|
, nodes = require('./');
|
|
|
|
/**
|
|
* Initialize a new `Null` node.
|
|
*
|
|
* @api public
|
|
*/
|
|
|
|
var Null = module.exports = function Null(){};
|
|
|
|
/**
|
|
* Inherit from `Node.prototype`.
|
|
*/
|
|
|
|
Null.prototype.__proto__ = Node.prototype;
|
|
|
|
/**
|
|
* Return 'Null'.
|
|
*
|
|
* @return {String}
|
|
* @api public
|
|
*/
|
|
|
|
Null.prototype.inspect =
|
|
Null.prototype.toString = function(){
|
|
return 'null';
|
|
};
|
|
|
|
/**
|
|
* Return false.
|
|
*
|
|
* @return {Boolean}
|
|
* @api public
|
|
*/
|
|
|
|
Null.prototype.toBoolean = function(){
|
|
return nodes.false;
|
|
};
|
|
|
|
/**
|
|
* Check if the node is a null node.
|
|
*
|
|
* @return {Boolean}
|
|
* @api public
|
|
*/
|
|
|
|
Null.prototype.__defineGetter__('isNull', function(){
|
|
return true;
|
|
});
|
|
|
|
/**
|
|
* Return hash.
|
|
*
|
|
* @return {String}
|
|
* @api public
|
|
*/
|
|
|
|
Null.prototype.__defineGetter__('hash', function(){
|
|
return null;
|
|
});
|
|
|
|
/**
|
|
* Return a JSON representation of this node.
|
|
*
|
|
* @return {Object}
|
|
* @api public
|
|
*/
|
|
|
|
Null.prototype.toJSON = function(){
|
|
return {
|
|
__type: 'Null',
|
|
lineno: this.lineno,
|
|
column: this.column,
|
|
filename: this.filename
|
|
};
|
|
};
|